1 files changed, 26 insertions, 1 deletions
diff --git a/spec/lib/gitlab/markdown_cache/redis/extension_spec.rb b/spec/lib/gitlab/markdown_cache/redis/extension_spec.rb
index b6a781de426..3dcb9f160ba 100644
--- a/spec/lib/gitlab/markdown_cache/redis/extension_spec.rb
+++ b/spec/lib/gitlab/markdown_cache/redis/extension_spec.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 require 'spec_helper'
 
-describe Gitlab::MarkdownCache::Redis::Extension, :clean_gitlab_redis_cache do
+RSpec.describe Gitlab::MarkdownCache::Redis::Extension, :clean_gitlab_redis_cache do
   let(:klass) do
     Class.new do
       include CacheMarkdownField
@@ -49,6 +49,31 @@ describe Gitlab::MarkdownCache::Redis::Extension, :clean_gitlab_redis_cache do
     expect(thing.cached_markdown_version).to eq(cache_version)
   end
 
+  describe '.preload_markdown_cache!' do
+    before do
+      Gitlab::Redis::Cache.with do |r|
+        r.mapped_hmset(expected_cache_key,
+                       title_html: 'hello',
+                       description_html: 'world',
+                       cached_markdown_version: cache_version)
+      end
+    end
+
+    it 'does not preload the markdown twice' do
+      expect(Gitlab::MarkdownCache::Redis::Store).to receive(:bulk_read).and_call_original
+      expect(Gitlab::Redis::Cache).to receive(:with).twice.and_call_original
+
+      klass.preload_markdown_cache!([thing])
+
+      aggregate_failures do
+        expect(Gitlab::Redis::Cache).not_to receive(:with)
+        expect(thing.title_html).to eq('hello')
+        expect(thing.description_html).to eq('world')
+        expect(thing.cached_markdown_version).to eq(cache_version)
+      end
+    end
+  end
+
   describe "#refresh_markdown_cache!" do
     it "stores the value in redis" do
       expected_results = { "title_html" => "`Hello`",